I bought the Avantgarde grill from Bekkers. I bought the whole thing, not just the insert. It is listed as being $179 I believe, but with a little work, I got it for $149.
I am very happy with the way it looks. I even nailed the gym set in the garage, pushing it back about a foot (and it's HEAVY) and the grill is fine! Good luck with whatever you do.